TREA

Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms

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Industry

  • CPC
  • G04F1/00
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Parent Industries

GPHYSICS G04Horology G04FTIME-INTERVAL MEASURING

Current Industry

G04F1/00Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms

Sub Industries

G04F1/005using electronic timing G04F1/02by consuming prefixed quantities of materials G04F1/04by movement or acceleration due to gravity G04F1/06by flowing-away of a prefixed quantity of fine-granular or liquid materials G04F1/063using acoustic signalling G04F1/066using electrical contact device G04F1/08by a body falling a prefixed distance in air or in a viscous material
Industries